Lorient 56100 - Bretagne
- Baraer
- Barat
- Barazeur
- Barbancon
- Barbat
- Barbaud
- Barbe
- Barclay
- Bardant
- Bardelli
- Bardi
- Bardy
- Baril
- Baronnet
- Barraud
- Barrault
- Barrier
- Barthelemy
- Barthet
- Barzic
- Bassal
- Bastard
- Baudin
- Baumel
- Bauvois
- Bay
- Bayhan
- Bazin
- Bazire
- Be
- Becdelievre
- Bechard
- Becquart
- Bego
- Begue
- Beguin
- Bekbouki
- Belbeoch
- Bella
- Bellalin
- Bellamy
- Bellot
- Beloryan
- Ben Miloud
- Benabdallah
- Bendahou
- Bengu
- Benhamou
- Benheddi
- Bennard
- Bera
- Berard
- Bercy
- Bernardet
- Bernery
- Bernier
- Berrehar
- Berroche
- Berthic
- Berthier
- Besnier
- Bessiere
- Beurrel
- Beuve-mery
- Beyaz
- Beyou
- Beyria
- Bichon
- Bidault
- Bideau
- Bidon
- Bienaime
- Bigouin
- Bihel
- Billaud
- Bille
- Billy
- Biloa
- Bily
- Binard
- Binet
- Biroteau
- Blais
- Bleuse
- Blieck
- Blivet Herblot
- Blutel
- Bocoho
- Bodenez
- Bodennec
- Body
- Boedec
- Bohelay
- Bohuon
- Boillot
- Boirel
- Boisnard
- Boisson
- Boite
- Boivent